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Tytuł:
Sea ice mechanics
Autorzy:
Paul, Felix
Schwarz, Carina
Audh, Riesna Reuben
Bluhm, J.
Johnson, Siobhan
MacHutchon, Keith
Mielke, Tommy
Mishra, A.
Rampai, Tokoloho
Ricken, Tim
Schwarz, Alexander
Skatulla, Sebastian
Thom, Andrea
Verrinder, Robyn
Schröder, Jörg
Vichi, Marcello
Lupascu, Doru C.
Powiązania:
https://bibliotekanauki.pl/articles/29519762.pdf
Data publikacji:
2023
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sea ice mechanics
polar regions
review
Antarctic MIZ
Opis:
Earth System Models (ESM), simulating sea ice and its interaction with the atmosphere and open ocean, require reliable physical, chemical, and biological input from measurements. There is limited data available from the Marginal Ice Zone of the Antarctic, where sea ice growth mechanisms differ from the Arctic. The main objective of this study is to review existing work related to Antarctic sea ice and highlight gaps in the available literature. The mechanical properties of sea ice and the numerical modeling of sea ice across all scales are covered. We summarize the genesis, physical mechanics, static and dynamic properties, strength, toughness, and transport of young sea ice as well as medium to large scale observation. On the computational mechanics side large- and small-scale modeling, ocean-sea ice and atmosphere-sea ice models, as well as sea ice rheology models, sea ice fracture mechanics, and bio-geo-chemical interaction processes are captured. The synergy between the physical and computational mechanics brings to light missing information from both fields. Plain language summary (PLS) Sea ice determines the interaction of the ocean with the atmosphere in both the southern and northern hemispheres. Its formation and annual development is subject to mechanical interaction with ocean currents and winds. This review covers the mechanics of sea ice in the Antarctic and its relation to the Arctic covering experiment and modelling. Impact on the climate is discussed.
Źródło:
Computer Methods in Materials Science; 2023, 23, 3; 5-53
2720-4081
2720-3948
Pojawia się w:
Computer Methods in Materials Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new neolepadid cirripede from a Pleistocene cold seep, Krishna-Godavari Basin, offshore India
Autorzy:
Gale, A.S.
Little, C.T.S.
Johnson, J.E.
Giosan, L.
Powiązania:
https://bibliotekanauki.pl/articles/2082175.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Cirripedia
Thoracica
Neolepadidae
cold seep
Pleistocene
Indian Ocean
Opis:
Valves of a thoracican cirripede belonging to a new species of the Neolepadidae, Ashinkailepas indica Gale sp. nov. are described from a Late Pleistocene cold seep (52.6 ka), cored in the Krishna-Godavari Basin, offshore from the eastern coast of India. This constitutes the first fossil record of the genus, and its first occurrence in the Indian Ocean. Other fossil records of the Neolepadidae (here elevated to full family status) are discussed, and it is concluded that only Stipilepas molerensis from the Eocene of Denmark, is correctly referred to the family. Cladistic analysis of the Neolepadidae supports a basal position for Ashinkailepas, as deduced independently from molecular studies, and the Lower Cretaceous brachylepadid genus Pedupycnolepas is identified as sister taxon to Neolepadidae. Neolepadids are not Mesozoic relics as claimed, preserved in association with the highly specialised environments of cold seeps and hydrothermal vents, but are rather an early Cenozoic offshoot from the clade which also gave rise to the sessile cirripedes.
Źródło:
Acta Palaeontologica Polonica; 2020, 65, 2; 351-362
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
From Individual Heroes to National Performers: The Shift in Taekwondos Peace Promotion Activities
Autorzy:
Johnson, John A.
Lewis, Sanko
Powiązania:
https://bibliotekanauki.pl/articles/1922298.pdf
Data publikacji:
2020-11-04
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
sports diplomacy
cultural exchange
karate
Republic of Korea (ROK)
People’s Democratic Republic of Korea (DPRK)
Opis:
The writings of early taekwondo pioneers promote peace through the practice of the martial art and, later, the combat sport. These pioneers charged taekwondo practitioners with a duty to contribute to justice, defend the weak, and build a more peaceful world. National and international taekwondo organizations such as the Kukkiwon, World Taekwondo (WT), and the International Taekwon-Do Federation (ITF) have taken up the charge of peace promotion through taekwondo by means of transnational events, such as goodwill tours and joint taekwondo demonstrations by adversarial states (e.g., South and North Korea). These activities are soft diplomacy initiatives and have seen some level of success. While these soft diplomacy activities are in line with the goal of peace promotion that the early pioneers advocated, they are qualitatively different from what the pioneers advocated. Originally, the responsibility of peace promotion was on the individual taekwondo practitioner, who ought to cultivate moral character, courage, and martial art skill in order to uphold justice and defend the weak. With the current use of taekwondo for soft diplomacy, the responsibility of peace promotion has shifted from the individual practitioner to the governing bodies, such as WT and the ITF. Instead of focusing on issues surrounding justice and the protection of the weak, these national and international organizations focus on geopolitical cooperation, which is mediated through cultural exchange activities in the form of taekwondo demonstrations. These events involve activities such as acrobatic performances, dance routines, and board breaking that require little combat skill and may not pose the risk of serious injury to the individual practitioners, mainstays of the individual heroes of old. The charge to safeguard justice and physically defend the weak, which are acts of true courage as was envisioned by the taekwondo pioneers, is mostly ignored.
Źródło:
Physical Activity Review; 2020, 2, 8; 64-71
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical investigation and sensitivity analysis of turbulent heat transfer and pressure drop of Al2O3/H2O nanofluid in straight pipe using response surface methodology
Autorzy:
Fadodun, Olatomide G.
Amosun, Adebimpe A.
Salau, Ayodeji O.
Olaloye, David O.
Ogundeji, Johnson A.
Ibitoye, Francis I.
Balogun, Fatai A.
Powiązania:
https://bibliotekanauki.pl/articles/239962.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
nusselt number
Reynolds number
pressure drop
response surface methodology
nanofluid
single phase flow
Opis:
In this paper, investigation of the effect of Reynolds number, nanoparticle volume ratio, nanoparticle diameter and entrance temperature on the convective heat transfer and pressure drop of Al2O3/H2O nanofluid in turbulent flow through a straight pipe was carried out. The study employed a computational fluid dynamic approach using single-phase model and response surface methodology for the design of experiment. The Reynolds average Navier-Stokes equations and energy equation were solved using k-ε turbulent model. The central composite design method was used for the response-surface-methodology. Based on the number of variables and levels, the condition of 30 runs was defined and 30 simulations were performed. New models to evaluate the mean Nusselt number and pressure drop were obtained. Also, the result showed that all the four input variables are statistically significant to the pressure drop while three out of them are significant to the Nusslet number. Furthermore, sensitivity analysis carried out showed that the Reynolds number and volume fraction have a positive sensitivity to both the mean Nusselt number, and pressure drop, while the entrance temperature has negative sensitivities to both.
Źródło:
Archives of Thermodynamics; 2020, 41, 1; 3-30
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pathway analysis to determine factors contributing to overall quality scores in four berry crops
Autorzy:
Cockerton, H.
Blanco Unzueta, M.
Johnson, A.W.
Vadillo Dieguez, A.
Fernandez Fernandez, F.
Powiązania:
https://bibliotekanauki.pl/articles/1077482.pdf
Data publikacji:
2020
Wydawca:
Instytut Ogrodnictwa
Tematy:
berry plant
blackberry
blueberry
raspberry
strawberry
fruit quality
environmental factor
agronomic factor
genetic factor
berry crop
Opis:
Fruit quality attributes are influenced by environmental, agronomic and genetic factors; both cultivars and growing conditions can vary substantially between UK production and imported fruit. This study aimed to record and dissect the most relevant fruit quality traits for berries imported into the UK in the winter months. Blackberry, blueberry, raspberry and strawberry fruit were imported from 11 countries into a Kent-based packhouse (UK) or purchased from major retailers between December 2018 and March 2019. Multiple fruit quality components were assessed for relative contribution towards a high “overall assessment” fruit quality score. It was found that strawberry and blackberry overall scores were affected by sweetness perception, whereas blueberry and raspberry organoleptics are more complex, with overall scores influenced by flavor perception. Multiple raspberry and strawberry fruit quality traits were found to be associated with genotypic differences, indicating a promising potential for genetic improvement through breeding. By contrast, the study findings suggest that there is less potential for genetic improvement in blueberry, and that the environment may have a large effect on blueberry fruit quality traits.
Źródło:
Journal of Horticultural Research; 2020, 28, 2; 35-42
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photocatalytic degradation of ampicillin using silver nanoparticles biosynthesised by Pleurotus ostreatus
Autorzy:
Jassal, P.S.
Khajuria, R.
Sharma, R.
Debnath, P.
Verma, S.
Johnson, A.
Kumar, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096973.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ampicillin
FTIR
photocatalysis
silver nanoparticles (Ag-NPs)
TEM
Opis:
The past few decades have witnessed a tremendous increase in the consumption of antibiotics worldwide. This rampant and unregulated use of antibiotics and their improper disposal has led to the accumulation of these drugs in the environment. This in turn has led to the emergence of antibiotic resistance in microbes and has become one of the most pressing global concerns in medicine, with highly resistant pathogens of many species proving difficult to treat. The aim of the study was to synthesise silver nanoparticles (Ag-NPs) using white rot fungus, Pleurotus ostreatus and assess its potential to carry out photocatalytic degradation of ampicillin. UV–Vis spectroscopy, Fourier transform infrared spectroscopy and transmission electron microscope have been used to characterize biosynthesized Ag-NPs. The photocatalytic degradation of ampicillin in aqueous solution by Ag-NPs was evaluated under natural sunlight. The effect of the operating conditions (contact time, Ag-NP concentration and initial ampicillin concentration) on the photocatalytic degradation was also investigated. The highest ampicillin degradation of 96.5% was observed after exposure of the solution (antibiotic + nanoparticles) for 4 h in sunlight. The maximum degradation was observed at an Ag-NP concentration of 5 ppm at pH 6. To the best of our knowledge, photocatalytic degradation of ampicillin using Ag-NPs synthesised by P. ostreatus has not been reported earlier.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2020, 101, 1; 5-14
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigations on the Properties of Nanostructured Mg-Doped Sn₂S₃ Thin Films towards Photovoltaic Applications
Autorzy:
Joshua Gnanamuthu, S.
Kartharinal Punithavathy, I.
Johnson Jeyakumar, S.
Jobe Prabhakar, P.
Parasuraman, K.
Nagarethinam, V.
Usharani, K.
Balu, A.
Powiązania:
https://bibliotekanauki.pl/articles/1029811.pdf
Data publikacji:
2018-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
77.84.Bw
78.66.Jg
68.55.Ln
78.20.Ci
73.61.Jc
Opis:
This paper reports the synthesis, crystal structure, surface morphology, optical and electrical properties of Mg-doped Sn₂S₃ thin films deposited by spray pyrolysis technique. All the films exhibit orthorhombic crystal structure with a (211) preferential orientation. Crystallite size calculations based on the Debye-Scherrer formula indicated that the Sn₂S₃ crystallite size increases with Mg content from 27.97 nm to 33.58 nm. Scanning electron microscopy images showed that all the films were very smooth composed of nanoneedle and nanoplate shaped grains. The band gap energy of the films exhibits a blue shift from 1.94 eV to 2.09 eV with increase in Mg concentration. Resistivity values of the undoped and Mg-doped Sn₂S₃ films were found to be in the order of 0.1 Ωcm. From the obtained results it is observed that the Sn₂S₃ film coated with 2 wt% Mg concentration exhibits better physical properties.
Źródło:
Acta Physica Polonica A; 2018, 133, 1; 15-19
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Taekwondo diplomacy: new possibilities for peace on the Korean Peninsula
Autorzy:
Johnson, John A.
Vitale, George
Powiązania:
https://bibliotekanauki.pl/articles/1923660.pdf
Data publikacji:
2018-11-28
Wydawca:
PPHU Projack Jacek Wąsik
Tematy:
soft diplomacy
international relations
sports diplomacy
International Taekwon-Do Federation (ITF)
World Taekwondo (WT)
Opis:
Sports diplomacy has long been effective in bringing nations and cultures together. Sports diplomacy is a type of soft diplomacy: the more informal diplomatic engagements between non-government entities that sometimes operate with governmental support, but more often as a private exchange. Soft diplomacy has provided governments a place where greater understanding happens, which has in turn led to increased political cooperation. Taekwondo, the Korean martial art turned international Olympic sport, has been used for soft diplomatic purposes almost since its inception. Most recently, the Taekwondo demonstration teams from the Republic of Korea (ROK; South Korea) and the Democratic People's Republic of Korea (DPRK; North Korea) have been used as a tool to bridge the political gap between the two divided nations. The current research introduces a general framework of diplomacy and elucidates the soft diplomacy efforts made by ROK and DPRK Taekwondo organizations in order to provide a foundation for future research on Taekwondo diplomacy and peace negotiations.
Źródło:
Physical Activity Review; 2018, 6; 237-250
2300-5076
Pojawia się w:
Physical Activity Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The state of adolescent student attitude towards sex/sexuality education in today’s contemporary society
Autorzy:
Adiaha, Monday S.
Abolarin, Elizabeth E.
Johnson, Bukola K.
Ndifon, Mary A.
Anabe, Momoh I.
Ocheje, David U.
Auwalu, Saminu
Powiązania:
https://bibliotekanauki.pl/articles/1177733.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Adolescent
Contemporary
Education
Sexuality
Society
Opis:
This study was conducted to investigate the attitude of adolescent students towards sex education. The investigation was carried out in Junior Secondary Schools in Gwagwalada Area Council, Federal Capital Territory, Abuja. A simple random technique was used to select the sample size of 1,981 respondents, made up of students in three (3) schools within Gwagwalada Area Council, used for the study. The statistical analysis used for data presentation and analysis were frequency table and percentages. The findings indicated that adolescent students held generally positive attitudes towards sexuality education, with female holding more positive attitudes than male. Learners indicated that the sexuality programme provide valuable information especially with regards to their own bodies and self-respect. Recommendations were given, among which include, that; parents should support their adolescent to practice the knowledge acquired from sex education, ideal (positive) peer group should be form by adolescents, including the society encouraging adolescents to practice teachings of sexuality education, and presenting values and morals that the adolescents can emulate as a guide regarding sexuality issues.
Źródło:
World Scientific News; 2018, 101; 205-216
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
CUBAN SOFT POWER: FROM REVOLUTIONARY CHARISMA TO SOCIAL DIPLOMACY
Autorzy:
DA SILVA, Marcos Antonio
VRECHE, Carla Cristina
JOHNSON, Guillermo A.
Powiązania:
https://bibliotekanauki.pl/articles/555844.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warszawski. Instytut Studiów Iberyjskich i Iberoamerykańskich
Tematy:
Cuban Revolution
Soft Power
Social Diplomacy
Opis:
This article analyzes the international projection of the Cuban Revolution, discussing the contours of its soft power that contributed to international reintegration. After this concept discussing briefly and focusing on the transformation of contemporary international scene, it analyzes the change of use of soft power in the revolutionary process in Cuba. In this sense, it points out that such power was, in the golden years of the Revolution (the 60s and the 70s), based on the revolutionary aura and the charisma of its leaders (Fidel Castro, Che Guevara and others) and that, in the first decade of this century, it acquired new supported contours through the emergence of Social Diplomacy, i.e. cooperation in the field of social services (health, education and sports, among others), thus contributing.
Źródło:
Ameryka Łacińska. Kwartalnik analityczno-informacyjny; 2016, 24, 4(94); 43-61
1506-8900
2081-1152
Pojawia się w:
Ameryka Łacińska. Kwartalnik analityczno-informacyjny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Directions in vehicle efficiency and emissions
Autorzy:
Johnson, T. V.
Joshi, A.
Powiązania:
https://bibliotekanauki.pl/articles/133977.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
greenhouse gases
vehicle emissions
regulations
engines
aftertreatment
NOx
diesel oxidation catalyst
selective catalytic reduction
diesel particulate filter
gasoline particulate filter
gazy cieplarniane
przepisy prawne
silniki
katalizator utleniania oleju napędowego
selektywna redukcja katalityczna
filtr cząstek stałych
Opis:
This paper provides a general review of light-duty (LD) and heavy-duty (HD) regulations, engine technology, and key emission control strategies. The US is placing a stronger emphasis on laboratory emissions, and the LD regulations are about an order of magnitude tighter than Euro 6, but Europe is focusing on real-world reductions. The California HD low-NOx regulation is advancing and may be proposed in 2017/18 for implementation in 2023+. The second phase of US HD greenhouse gas regulations propose another 25-30% tightening beyond Phase 1, beginning in 2021. LD and HD engine technology continues showing marked improvements in engine efficiency. LD gasoline concepts are closing the gap with diesel. HD engines are demonstrating more than 50% BTE using methods that can reasonably be commercialized. LD and HD diesel NOx technology trends are also summarized. NOx storage catalysts and SCR combinations are the lead approach to meeting the LD regulations. Numerous advanced NOx technologies are being evaluated and some promise for meeting the California HD low NOx targets. Oxidation catalysts are improved for both diesel and methane oxidation applications. Gasoline particulate filters (GPF) are the lead approach to reducing particles from gasoline direct injection (GDI) engines. They reduce PAH emissions, and catalyzed versions can be designed for low back pressure. Regeneration largely occurs during hot decelerations.
Źródło:
Combustion Engines; 2016, 55, 3; 3-8
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inexorable Carbon Capture & Sequestration and its Indian Scenario
Autorzy:
Thaslim, K. A. Muhammed
Johnson, Jeffy
Powiązania:
https://bibliotekanauki.pl/articles/1191237.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
CCS
Carbon Capture; Carbon sequestration; Climate change; Carbon footprint; Environmnet
GHG emissions
Opis:
The drastic increase in the emission of CO2 (carbon dioxide) during the last 30 years caused by fossil fuel combustion has been identified as the major reason for the climate change. Demand for fossil fuels has begun to decline in the developed world, however, demand in developing countries has been rising and will continue to rise. India in its developing phase has been risen as one of the major emitting nations since they hugely rely on fossil fuels. And opting alternate energy sources wouldn’t suffice for meeting the obligatory values of emission. While the global frameworks for climate change demands for limiting the temperature rise within 2 °C, more mitigation technologies other than renewable energy and energy efficiency are searched for, where Carbon Capture & Sequestration pitch in. In this paper we discuss about the capacity of CCS as a climate mitigation tool and additionally evaluates the feasibility of implementation in Indian market.
Źródło:
World Scientific News; 2016, 54; 110-131
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Self-reported physical activity versus physical function capacity: alternatives for energy expenditure estimation
Deklarowany poziom aktywności fizycznej a wydolność funkcjonalna: alternatywy dla oceny wydatku energetycznego
Autorzy:
Mbada, Chidozie E
Osifeso, Temitope A
Johnson, Olubusola E
Okonji, Adaobi M
Odeyemi, Emmanuel A
Powiązania:
https://bibliotekanauki.pl/articles/1798624.pdf
Data publikacji:
2016
Wydawca:
Akademia Wychowania Fizycznego im. Bronisława Czecha w Krakowie
Tematy:
physical activity
exercise capacity
energy expenditure
cardiovascular parameters
perceived exertion rate
aktywność fi zyczna
wydolność wysiłkowa
wydatek energetyczny
parametry układu sercowo-naczyniowego
skala odczuwania
wysiłku
Opis:
The extent to which self-report activity measured by the International Physical Activity Questionnaire (IPAQ) can substitute performance-based functional capacity measured by the Six-Minute Walk Test (6MWT) remains inconclusive. This study assessed Physical Activity (PA) and Functional Exercise Capacity (FEC); and also determined the relationship between PA and FEC in apparently healthy young adults. A total of 342 (145 males and 197 females) undergraduates of Obafemi Awolowo University, Ile-Ile, Nigeria participated in the study. The IPAQ was used to assess PA, while FEC was assessed using the 6MWT, and expressed in terms of the Six-Minute Walk Distance (6MWD), Six-Minute Walk Work (6MWW), Maximum Oxygen Uptake (VO2max) and Metabolic Equivalent (METS). Anthropometric and cardiovascular parameters were measured following standardized procedures. Data was analyzed using descriptive and inferential statistics. The alpha level was set at 0.05. The mean age of the participants was 22.0±2.87 years. The mean IPAQ score of all participants was 1471.4±1086.93. The percentage for low, moderate and high PA was 19% (65), 41.2% (141) and 39.8% (136), respectively. The mean 6MWD, 6MWW, VO2max and METS were 639.47 ±66.6 m, 41805.0 ±8520.6 kg·m, 28.9 ±1.92 mlO2k-1min-1, 4.05 ±0.32 mL/kg, respectively. There were signifi cant positive correlations between PA and each of the 6MWD (r=0.268; p=0.001), 6MWW (r=0.219; p=0.001), VO2max (r=0.268; p=0.001), METS (r=0.268; p=0.001). Measures of exercise capacity were not signifi cantly correlated with the anthropometric variables (p>0.05). Self-report of physical activity in healthy young adults does not adequately substitute the results of the Six-Minute Walk Test. Mbada Ch.E., Osifeso T.A., Johnson O.E., Okonji A.M., Odeyemi E.A. Self-reported physical activity versus physical function capacity: alternatives for energy expenditure estimation. Med Rehabil 2016; 20(4): 4-12. DOI: 10.5604/01.3001.0009.5479 null
Wstęp: Stopień, w jakim deklarowana aktywność fizyczna oceniania za pomocą Międzynarodowego Kwestionariusza Aktywności Fizycznej (IPAQ) może zastąpić opartą o wyniki wydolność funkcjonalną mierzoną testem 6-minutowego chodu (6MWT) pozostaje niejednoznaczny. W badaniu tym oceniano aktywność fizyczną (AF) i funkcjonalną wydolność wysiłkową (FEC); a także określono zależność pomiędzy PA i FEC u pozornie zdrowych, młodych dorosłych. Materiał i metody: Badaniem objęto 342 studentów (145 mężczyzn i 197 kobiet) z Obafemi Awolowo University, Ile-Ile, Nigeria. IPAQ został wykorzystany do oceny AF, podczas gdy FEC oceniano za pomocą 6MWT i wyrażono w sześciominutowym dystansie chodu (6MWD), pracy wykonanej podczas sześciominutowego chodu (6MWW), maksymalnym minutowym poborze tlenu (VO2max) i równoważniku metabolicznym (MET). Parametry antropometryczne i układu krążenia były mierzone zgodnie ze standardowymi procedurami. Dane analizowano przy użyciu wnioskowania statystycznego i opisowego. Poziom alfa został ustalony na poziomie 0,05. Wyniki: Średni wiek uczestników wyniósł 22,0 ±2,87 lat. Średni wynik IPAQ wszystkich uczestników to 1471,4 ±1086,93. Procent dla niskiego, średniego i wysokiego poziomu AF to odpowiednio 19% (65), 41,2% (141) i 39,8% (136). Średni 6MWD, 6MWW, VO2max i METS wyniosły odpowiednio 639.47 ±66,6 m, 41805.0±8520,6 kg·m, 28,9±1,92 mlO2k-1min-1, 4,05±0,32 ml/kg. Istnieją znaczące dodatnie korelacje pomiędzy PA i każdym z 6MWD (r=0,268, p=0,001), 6MWW (r=0,219, p=0,001), VO2max (r=0,268, p=0,001), METS (r=0,268; p=0,001). Miary wydolności wysiłkowej nie były istotnie skorelowane ze zmiennymi antropometrycznymi (p>0,05). Wnioski: Deklarowany poziom aktywności fizycznej u zdrowych młodych dorosłych nie jest adekwatny do wyników testu sześciominutowego marszu.
Źródło:
Medical Rehabilitation; 2016, 20(4); 4-12
1427-9622
1896-3250
Pojawia się w:
Medical Rehabilitation
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 47

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